Ok. Thanks for the clarifications. Though oneworld.com lists Pre-reserved preferential seating* (*In accordance with the individual policy of the oneworld member airline operating the flight.) as a benefit for Rubies... I guess BA does not recognize it, right?
So, is it going to be mad dash to grab seats at exactly 23:59 before the take off? My wife and I are on two different PNRs, so need to make sure we stay together